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Buick Lacrosse 5.3 V8 300hp

2005 - 2009

300 Original HP
320 Modified HP
438 Original NM
460 Modified NM
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Buick Lacrosse

Buick Lacrosse 2005 - 2009 5.3 V8 300hp

Key Specifications

Generazione 2005 - 2009
Carburante Petrol
Power 300 → 320 hp +20 hp
Torque 438 → 460 Nm +22 Nm
Power
320 HP
+20 HP (+6.7%)
Original 300 HP
Stage 1 320 HP
Torque
460 NM
+22 NM (+5%)
Original 438 NM
Stage 1 460 NM

Power Graph

Original Power 300HP
Original Torque 438Nm
Power After Remap 320HP
Torque After Remap 460Nm

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Frequently Asked Questions - Buick Lacrosse

The cost of Stage 1 tuning for Buick Lacrosse 5.3 V8 300hp varies depending on the ECU and specific requirements. Contact us for a free personalized quote.

Stage 1 tuning for Buick Lacrosse typically takes 1-2 hours of work. Time may vary depending on the ECU type.

Yes, our Stage 1 tunes are developed respecting the engine's safety margins. The power increase from 300 to 320 HP (+7%) is within safe parameters.

With Stage 1 tuning, Buick Lacrosse goes from 300 HP to 320 HP (+20 HP) and from 438 Nm to 460 Nm (+22 Nm).

Stage 1 remapping takes it from 300 HP to 320 HP (+20 HP, +7%) and torque from 438 Nm to 460 Nm (+22 Nm). These figures refer to the standard engine, with no hardware modifications.

A remap changes the factory calibration, so on a vehicle still under manufacturer warranty it may affect coverage on powertrain components. Performance tuning keeps all emission systems working; deactivating emission devices such as DPF, EGR or AdBlue is not road-legal in the EU and UK and is intended for off-road, motorsport or export use only.

With a normal driving style consumption usually stays the same or drops slightly: the extra torque at low rpm means less throttle for the same speed. Consumption goes up only if you actually use the additional power.

Yes. The original file is read and stored before any modification, so the vehicle can be returned to the factory calibration at any time.

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Buick
Buick Lacrosse 5.3 V8 300hp
+20 HP
320 HP